What are the main functions of a general computer?

The functions of a computer are pretty much endless, however, some common functions are used by all the computer users. These include:

1. Information input: we can input the information or data using keyboard, data storage devices (such as hard drive, pen drive, CD or DVD, etc.). The information can be arithmetic or visual (such as pictures, videos, etc.) or alphanumeric (Such as code), etc.


2. Processing: Computer process the information we input into it. There are several software that can help us process the data. An example is spreadsheet program, that allows us to do mathematical operations on the data.


3. Storage: computers can be used as storage devices. They can store the information we feed, processed information, etc. This information can be retrieved whenever the user needs it.


4. Output: Computer will also output the information (after processing) in several different formats (such as spreadsheets, pictures, videos, etc.)


5. Automation: computers can also be used for automating operations, by controlling other devices. At home, we use computer to control our printer.

Hope this helps.